We can custom size any of our products to be smaller than standard. Tri Traps, we can only shorten (can't change the triangular dimension). 244's and monsters we can change both dimensions (L and W). There is a $25 upchage from the standard size to do the custom sizing.
As for the other, it's really more of a cost/benefit situation. I usually tell people if it's getting to be around 1/2 size, might not be worth the money unless there is a specific issue that requires it.
Bryan